Adjustable electric single-beam crane

Abstract

The utility model discloses an adjustable electric single-beam crane which comprises an electric hoist, a steel wire rope and a main beam, the electric hoist is connected with a fixed seat through one end of the steel wire rope, and the adjustable electric single-beam crane further comprises a clamping mechanism, a lifting mechanism and a lifting mechanism, and the clamping mechanism comprises two second hoisting frames, two second electric telescopic rods and two connecting rods, the movable ends of the second electric telescopic rods are fixedly connected with limiting clamps, mounting plates are hinged to the inner walls of the opposite sides of the limiting clamps, and connecting blocks are arranged on the two sides of the second hoisting frames. The adjustable electric single-beam crane disclosed by the utility model has the effects that the adjustable electric single-beam crane can flexibly adapt to and clamp heavy objects with different shapes and sizes, the objects are prevented from slipping in the carrying process, the safety and the working efficiency during operation are improved, and the labor burden is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric single-girder cranes, in particular to an adjustable electric single-girder crane. Background Art

[0002] A crane, also known as a hoist, is a multi-action lifting machine that vertically lifts and horizontally transports heavy objects within a certain range. A single-girder crane is a lifting equipment that spans over workshops, warehouses, and yards for material lifting. Its two ends are located on tall cement columns or metal brackets, shaped like a bridge, and the bridge runs longitudinally along the tracks laid on both sides of the elevated racks, which can make full use of the space under the bridge to lift materials without being hindered by ground equipment. The single-girder crane is one of the most widely used and most numerous lifting machines, and is widely used in indoor and outdoor industrial and mining enterprises, iron and steel chemical industries, railway transportation, port terminals, and logistics turnover departments and places.

[0003] However, traditional electric single-girder cranes usually use simple tools such as hooks or slings to hold heavy objects. This method often fails to ensure the absolute stability of heavy objects during the handling process. Especially when dealing with heavy objects with irregular shapes, variable sizes, or large weights, problems such as shaking and slipping are more likely to occur, affecting the installation accuracy and operation safety. In addition, the traditional clamping method usually requires manual and cumbersome adjustments, with low efficiency and easy to make mistakes. Summary of the Utility Model

[0004] The utility model discloses an adjustable electric single-girder crane, aiming to solve the technical problems that traditional electric single-girder cranes usually use simple tools such as hooks or slings to hold heavy objects. This method often fails to ensure the absolute stability of heavy objects during the handling process. Especially when dealing with heavy objects with irregular shapes, variable sizes, or large weights, problems such as shaking and slipping are more likely to occur, affecting the installation accuracy and operation safety. In addition, the traditional clamping method usually requires manual and cumbersome adjustments, with low efficiency and easy to make mistakes.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] An adjustable electric single-girder crane, including an electric hoist, a steel wire rope, and a main girder. One end of the steel wire rope of the electric hoist is connected with a fixed seat, and further includes:

[0007] Clamping mechanism: Located directly below the main beam, the clamping mechanism includes two second lifting frames, two second electric telescopic rods, and two connecting rods. The movable end of the second electric telescopic rod is fixedly connected with a limit clamp. An installation plate is hinged to the inner walls of the opposite sides of the limit clamp. Connecting blocks are provided on both sides of the second lifting frame. The installation plate is fixedly connected to the circumferential outer wall of the connecting rod. The two ends of the connecting rod respectively penetrate through one side outer wall of the two connecting blocks. Fixed frames are provided at both ends of the connecting rod. A connecting plate is provided on the outer wall of one side of two adjacent fixed frames. Seven clamping claws are provided on the outer wall of one side of the connecting plate;

[0008] Support mechanism: Located on both sides of the main beam;

[0009] Pressing mechanism: Located on both sides of the main beam;

[0010] Adjusting mechanism: Located on the top of the clamping mechanism.

[0011] In this solution, the second lifting frame is moved to the position of the object to be lifted by an electric single-girder crane. By controlling the elongation or shortening of the movable end of the second electric telescopic rod, the inclination angles of the installation plate, the connecting plate, and the fixed frame are driven, and then the opening and closing angles of the two limit clamps are realized to adapt to objects of different sizes and shapes. When the seven clamping claws provided retract backward with the installation plate driven by the movable end of the second electric telescopic rod, the clamping and limiting of the object are realized. Then, the pressing mechanism is used to press the top of the object, thereby enhancing the clamping force of the entire device on the object. This device can flexibly adapt to and clamp heavy objects of different shapes and sizes, prevent the object from slipping during the handling process, improve the safety and work efficiency during operation, and reduce the manual burden.

[0012] In a preferred solution, the adjusting mechanism includes two first lifting frames. The first lifting frames are installed at the bottom of the fixed seat. Two installation blocks are provided at the bottom of the first lifting frame. A threaded rod is provided between the two installation blocks. A motor is provided on the outer wall of one side of one of the installation blocks. The output shaft of the motor is connected to the threaded rod. Two fixed blocks are connected to the circumferential outer wall of the threaded rod by threads. Two adjacent fixed blocks are installed on the outer wall of the top of the second lifting frame.

[0013] During use, first start the motor. The output shaft of the motor drives the threaded rod to rotate. Since the two mounting blocks are threadedly connected to the threaded rod and the mounting blocks are limited by the bottom grooves of the first lifting frame, the mounting blocks can linearly move on the circumferential outer wall of the threaded rod. When the two mounting blocks approach or move away from each other on the threaded rod, the two second lifting frames and the jaws mounted at their bottoms are driven to approach or move away from each other. Then, adjust the distance between the two second lifting frames and the jaws mounted at their bottoms according to the shape and size of the heavy object, thereby improving the practicability and flexibility of the entire device.

[0014] In a preferred embodiment, the support mechanism includes two support frames. A cross beam is provided on the outer wall of the top of the support frame. The two ends of the main beam are respectively slidably connected to the two cross beams. Slideways are provided on both outer walls of the main beam, and moving blocks are slidably connected to the slideways.

[0015] During use, the electric hoist can be used to move left and right on the main beam, thereby driving the moving blocks and the fixed seats and clamping mechanisms connected by the steel wire ropes to move back and forth on the cross beams at both ends of the main beam, carrying the lifted heavy object left and right and back and forth, flexibly adjusting according to the lifting requirements, efficiently operating, and widely applied to various working scenarios.

[0016] As can be seen from the above, an adjustable electric single-girder crane includes an electric hoist, a steel wire rope, and a main beam. One end of the steel wire rope of the electric hoist is connected to a fixed seat, and further includes:

[0017] Clamping mechanism: Located directly below the main beam. The clamping mechanism includes two second lifting frames, two second electric telescopic rods, and two connecting rods. The movable end of the second electric telescopic rod is fixedly connected to a limit clamp. The inner walls of the opposite sides of the limit clamp are hinged with mounting plates. Connecting blocks are provided on both sides of the second lifting frame. The mounting plate is fixedly connected to the circumferential outer wall of the connecting rod. The two ends of the connecting rod respectively penetrate through one outer wall of the two connecting blocks. Fixed frames are provided at both ends of the connecting rod. A connecting plate is provided on one outer wall of two adjacent fixed frames. Seven jaws are provided on one outer wall of the connecting plate;

[0018] Support mechanism: Located on both sides of the main beam;

[0019] Pressing mechanism: Located on both sides of the main beam;

[0020] Adjusting mechanism: Located on the top of the clamping mechanism. The adjustable electric single-girder crane provided by the present invention has the technical effects of being able to flexibly adapt to and clamp heavy objects of different shapes and sizes, preventing the object from slipping during the handling process, improving the safety and working efficiency during operation, and reducing the labor burden. Description of the Drawings

[0021] Figure 1 Schematic structural diagrams of the support mechanism and the pressing mechanism of an adjustable electric single-girder crane proposed by the present utility model.

[0022] Figure 2 Schematic structural diagram of the clamping mechanism of an adjustable electric single-girder crane proposed by the present utility model.

[0023] Figure 3 Schematic structural diagram of the adjustment mechanism of an adjustable electric single-girder crane proposed by the present utility model.

[0024] In the drawings: 1, support frame; 2, cross beam; 3, main beam; 4, slideway; 5, moving block; 6, mounting frame; 7, first electric telescopic rod; 8, clamping jaw; 9, first lifting frame; 10, second electric telescopic rod; 11, second lifting frame; 12, fixed block; 13, limit clamp; 14, mounting plate; 15, connecting rod; 16, fixed frame; 17, connecting plate; 18, motor; 19, threaded rod; 20, connecting block; 21, pressing plate. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0026] An adjustable electric single-girder crane disclosed by the present utility model is mainly applied to the scenario where traditional electric single-girder cranes usually use simple tools such as hooks or slings to clamp heavy objects. This method often fails to ensure the absolute stability of heavy objects during handling. Especially when dealing with heavy objects with irregular shapes, variable sizes or large weights, problems such as shaking and slipping are more likely to occur, affecting the installation accuracy and operation safety. In addition, the traditional clamping method usually requires manual and cumbersome adjustments, with low efficiency and prone to errors.

[0027] Referring to Figure 1 、 Figure 2 and Figure 3 , an adjustable electric single-girder crane includes an electric hoist, a steel wire rope and a main beam 3. One end of the steel wire rope of the electric hoist is connected with a fixed seat, and further includes:

[0028] Clamping mechanism: Located directly below the main beam 3, the clamping mechanism includes two second hoisting frames 11, two second electric telescopic rods 10, and two connecting rods 15. The movable end of the second electric telescopic rod 10 is fixedly connected with a limit clamp 13. On the inner walls of the opposite sides of the limit clamp 13, there is a hinge-mounted mounting plate 14. On both sides of the second hoisting frame 11, there are connecting blocks 20. The mounting plate 14 is fixedly connected to the circumferential outer wall of the connecting rod 15. The two ends of the connecting rod 15 respectively penetrate through one side outer wall of the two connecting blocks 20. At both ends of the connecting rod 15, there are fixing frames 16. On one outer wall of two adjacent fixing frames 16, there is a connecting plate 17. On one outer wall of the connecting plate 17, there are seven clamping claws 8;

[0029] Support mechanism: Located on both sides of the main beam 3;

[0030] Pressing mechanism: Located on both sides of the main beam 3;

[0031] Adjusting mechanism: Located on the top of the clamping mechanism.

[0032] Among them, the fixed end of the second electric telescopic rod 10 is installed on the top outer wall of the second hoisting frame 11, and the fixed end of the second electric telescopic rod 10 is arranged to incline downward. The downward-inclined design enables the movable end of the second electric telescopic rod 10 to more naturally match the movement trajectory of the limit clamp 13 when it extends, reducing the extra force or torque generated due to angle deviation, thereby optimizing the mechanical structure of the entire clamping mechanism and improving the stability of the hoisting operation. When the movable end of the second electric telescopic rod 10 inclines downward and extends, it can more effectively push the limit clamp 13 downward to increase the clamping force on the object. This design is particularly suitable for occasions that require a large clamping force, such as lifting heavy or slippery objects.

[0033] During the specific use process, the seven clamping claws 8 are evenly distributed, and the bent part of the clamping claw 8 is 90 degrees. Such a setting further enhances the clamping force on the object, especially when dealing with irregularly shaped or slippery objects, improving the practicality and flexibility of the entire device.

[0034] Specifically, first, the second hoisting frame 11 is moved to the position of the object to be lifted by an electric single-girder crane. By controlling the extension or shortening of the movable end of the second electric telescopic rod 10, the inclination angles of the mounting plate 14, the connecting plate 17, and the fixing frame 16 are driven, and then the opening and closing angles of the two limit clamps 13 are realized to adapt to objects of different sizes and shapes. When the seven clamping claws 8 are driven by the movable end of the second electric telescopic rod 10 to drive the mounting plate 14 to retract backward, the clamping and limiting of the object are realized. Then, the pressing mechanism is used to press the top of the object, thereby enhancing the clamping force of the entire device on the object. This device can flexibly adapt to and clamp heavy objects of different shapes and sizes, prevent the object from slipping during the handling process, improve the safety and working efficiency during the operation, and reduce the labor burden.

[0035] Referring to Figure 1 and Figure 3 In a preferred embodiment, the adjusting mechanism includes two first lifting frames 9. The first lifting frames 9 are installed at the bottom of the fixed seat. Two mounting blocks are provided at the bottom of the first lifting frame 9. A threaded rod 19 is provided between the two mounting blocks. An electric motor 18 is provided on the outer wall of one side of one of the mounting blocks. The output shaft of the electric motor 18 is connected to the threaded rod 19. Two fixing blocks 12 are connected to the outer circumference of the threaded rod 19 by threads. The adjacent two fixing blocks 12 are installed on the top outer wall of the second lifting frame 11.

[0036] It should be noted that the two second lifting frames 11 are arranged parallel to each other, and the included angle between the first lifting frame 9 and the second lifting frame 11 is 90°.

[0037] Among them, two threads with opposite directions are provided on the outer circumference of the threaded rod 19. This setting can adjust the distance between the two second lifting frames 11 and the clamping jaws 8 installed at their bottoms according to the size and shape of the heavy object.

[0038] Specifically, during use, first start the electric motor 18. The output shaft of the electric motor 18 drives the threaded rod 19 to rotate. Since the two mounting blocks are connected to the threaded rod 19 by threads, and the mounting blocks are limited by the bottom grooves of the first lifting frame 9, the mounting blocks can move linearly on the outer circumference of the threaded rod 19. When the two mounting blocks approach or move away from each other on the threaded rod 19, the two second lifting frames 11 and the clamping jaws 8 installed at their bottoms are driven to approach or move away from each other. Then, adjust the distance between the two second lifting frames 11 and the clamping jaws 8 installed at their bottoms according to the shape and size of the heavy object, so as to improve the practicability and flexibility of the entire device.

[0039] Referring to Figure 1 and Figure 3 In a preferred embodiment, the pressing mechanism includes two mounting frames 6. A first electric telescopic rod 7 is provided on the bottom outer wall of the mounting frame 6. The movable end of the first electric telescopic rod 7 is fixedly connected to a pressing plate 21. The lifting of the pressing plate 21 is controlled by the movable end of the first electric telescopic rod 7, so as to realize the pressing of the object and improve the clamping effect on the heavy object.

[0040] Referring to Figure 1, in a preferred embodiment, the support mechanism includes two support frames 1. A cross beam 2 is provided on the outer wall of the top of the support frame 1. Both ends of the main beam 3 are slidably connected to the two cross beams 2 respectively. Slideways 4 are formed on the outer walls of both sides of the main beam 3. A moving block 5 is slidably connected to the slideway 4. During use, an electric hoist can be used to move left and right on the main beam 3, thereby driving the moving block 5 and the fixing seat and clamping mechanism connected by the steel wire rope to move back and forth on the cross beam 2 at both ends of the main beam 3, so as to carry the lifted heavy object left and right and back and forth, and flexibly adjust and efficiently operate according to the lifting requirements, and it is widely used in various working scenarios.

[0041] Working principle: During use, first move the second lifting frame 11 to the position of the object to be lifted by an electric single-girder crane. By controlling the elongation or shortening of the movable end of the second electric telescopic rod 10, the inclination angles of the mounting plate 14, the connecting plate 17 and the fixing frame 16 are driven, and then the opening and closing angles of the two limit clips 13 are realized to adapt to objects of different sizes and shapes. When the seven clamping claws 8 are driven by the movable end of the second electric telescopic rod 10 to drive the mounting plate 14 to retract backward, the clamping and limiting of the object are realized, and then the top of the object is pressed by the pressing mechanism, so as to enhance the clamping force of the whole device on the object.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of some structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept shall be covered by the protection scope of the present invention.

Claims

1. An adjustable electric single-girder crane, comprising an electric hoist, a steel wire rope and a main girder (3). One end of the steel wire rope of the electric hoist is connected with a fixed seat. It is characterized in that, Further included are: Clamping mechanism: Located directly below the main beam (3), the clamping mechanism includes two second lifting frames (11), two second electric telescopic rods (10) and two connecting rods (15). The movable end of the second electric telescopic rod (10) is fixedly connected with a limit clamp (13). An installation plate (14) is hinged to the inner wall on the opposite side of the limit clamp (13). Connecting blocks (20) are provided on both sides of the second lifting frame (11). The installation plate (14) is fixedly connected to the circumferential outer wall of the connecting rod (15). The two ends of the connecting rod (15) respectively penetrate through the outer wall of one side of the two connecting blocks (20). Fixed frames (16) are provided at both ends of the connecting rod (15). A connecting plate (17) is provided on the outer wall of one side of two adjacent fixed frames (16). Seven clamping claws (8) are provided on the outer wall of one side of the connecting plate (17); Support mechanism: Located on both sides of the main beam (3); Pressing mechanism: Located on both sides of the main beam (3); Adjusting mechanism: Located on the top of the clamping mechanism.

2. The adjustable electric single-girder crane according to claim 1, wherein The fixed end of the second electric telescopic rod (10) is installed on the top outer wall of the second lifting frame (11), and the fixed end of the second electric telescopic rod (10) is arranged obliquely downward.

3. The adjustable electric single-girder crane according to claim 2, characterized in that, The seven clamping claws (8) are equidistantly distributed, and the bending part of the clamping claw (8) is 90 degrees.

4. An adjustable electric single-girder crane according to claim 1, characterized in that, The adjusting mechanism includes two first lifting frames (9). The first lifting frame (9) is installed on the bottom of the fixed seat. Two installation blocks are provided at the bottom of the first lifting frame (9). A threaded rod (19) is provided between the two installation blocks. A motor (18) is provided on the outer wall of one side of one of the installation blocks. The output shaft of the motor (18) is connected to the threaded rod (19). Two fixed blocks (12) are threadedly connected to the circumferential outer wall of the threaded rod (19). Two adjacent fixed blocks (12) are installed on the top outer wall of the second lifting frame (11).

5. An adjustable electric single-girder crane according to claim 4, wherein, Two threads in opposite directions are provided on the circumferential outer wall of the threaded rod (19).

6. The adjustable electric single-girder crane according to claim 5, wherein, The pressing mechanism includes two installation frames (6). A first electric telescopic rod (7) is provided on the bottom outer wall of the installation frame (6). The movable end of the first electric telescopic rod (7) is fixedly connected with a pressing plate (21).

7. An adjustable electric single-girder crane according to claim 1, characterized in that, The support mechanism includes two support frames (1). A cross beam (2) is provided on the top outer wall of the support frame (1). The two ends of the main beam (3) are respectively slidably connected to the two cross beams (2). Slide ways (4) are provided on the outer walls of both sides of the main beam (3). A moving block (5) is slidably connected to the slide way (4).

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